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bbfa235
(Get the code!)
Additional info and observations:
- Sometimes there is also flickering in videos (for example zoom calls), without freezing
- The flickering and freezes seem to be less (but not entirely removed!) when using a lower refresh rate
- While I am using the mouse, no flickering will occur, as soon as I stop moving, it will sometimes flicker - freezing seems to be able to happen while moving the mouse
- The used screen is a 144 Hz screen with support for AMD FreeSync, including the AMD Radeon RX 6600 XT GPU in the system. The screen is also connected with Displayport as supposed to be for FreeSync. In a dual-booted Windows, FreeSync is automatically activated and seems to work, and there are no freezes. - I am not sure how to check if FreeSync is enabled/used in Ubuntu.